Oil Re-Refining Company-Klamath Falls

The Emissions Inventory provides information on all the Toxic Air Contaminant emissions from a facility, and includes information on a facility’s operations and activities, as well as fuel and material usage rates. This is often the longest step in the CAO risk assessment process as DEQ needs to verify that all activities have been accounted for, and that the most representative emissions data available are used. In some cases, DEQ will require a facility to perform source testing at this stage if insufficient data is available to estimate emissions. ​

Aug. 26, 2019: Facility called in to CAO program.

• Call in letter

Nov. 15, 2019: Facility submits Emissions Inventory extension request.

• ORRCO extension request

Dec. 13, 2019: DEQ approves Emissions Inventory extension request.

• DEQ approval of Emissions Inventory extension request

Dec. 16, 2019: Facility submits Emissions Inventory.

March 17, 2020: DEQ response to Emissions Inventory submittal, requiring source testing and supplemental information.

• DEQ response letter

Apr. 10, 2020: ORRCO submits Emissions Inventory and source testing extension request.

• ORRCO extension request

Apr. 16, 2020: DEQ approves Emissions Inventory and source testing extension request.

• DEQ approval of Emissions Inventory and source testing extension request

May 13, 2020: ORRCO submits Emissions Inventory and source testing extension request.

• ORRCO extension request

May 29, 2020: DEQ approves Emissions Inventory and source testing extension request.

• DEQ approval of Emissions Inventory and source testing extension request

June 16, 2020: Facility submits Source Test Plan

July 15, 2020: Facility submitted revised Emissions Inventory and Process Flow Diagrams.

July 29, 2020: DEQ approved Source Test Plan

• DEQ approval letter
  

Sept. 9, 2020: ORRCO submits request to extend source test report due date

• ORRCO extension request
  

Sept. 16, 2020: DEQ responds to ORRCO extension request

• DEQ response to extension request
  

Nov. 20, 2020: ORRCO submits Source Test Report

• Source Test Report
  

Dec. 28, 2020: ORRCO submits revised polycyclic aromatic hydrocarbon Source Test Results

• Revised PAH Source Test Results
  

Jan. 4, 2021: ORRCO submits revised Method 29 Source Test Results

• Revised Method 29 Source Test Results
  

Jan. 15, 2021: DEQ finalizes its review of the Source Test Report

• DEQ Source Test Report
  

Feb. 2, 2021: DEQ requests additional revisions to the Emissions Inventory

• DEQ response letter
  

March 16, 2021: ORRCO submits revised Emissions Inventory
April 6. 2021: ORRCO submits revised Emissions Inventory
Aug. 2, 2021: DEQ requests additional revisions to the Emissions Inventory

• DEQ response letter
  

Aug. 24, 2021: ORRCO submits revised Emissions Inventory

• Emissions Inventory
  

Aug. 27, 2021: DEQ approves Emissions Inventory

• DEQ approval letter​​
  

April 14, 2022: DEQ sent letter regarding revised reporting requirements for exempt TEUs

• DEQ letter regarding revised reporting requirements for exempt TEUs ​​

The Modeling Protocol provides information on how the facility plans to accurately model the concentrations of Toxic Air Contaminants (TACs) that community members may be exposed to based on the TAC emissions data from the approved Emissions Inventory. A Risk Assessment Work Plan is required for more complex Risk Assessments (Level 3 or Level 4) and provides more detailed information about locations where people live or normally congregate around the facility and how risk to these community members will be evaluated.​

Sept. 22, 2021: ORRCO submits Modeling Protocol
Oct. 26, 2021: DEQ requests revisions to the Modeling Protocol

• DEQ response letter​

Nov. 22, 2021: ORRCO submits revised Modeling Protocol

• Modeling Protocol

Dec. 9, 2021: DEQ approves Modeling Protocol

• DEQ approval letter​
  

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The Risk Assessment provides the summary of findings on potential risks to the surrounding community from emissions of Toxic Air Contaminants from this facility. The assessment indicates the exposure location(s) in the community with the highest potential Cancer and Noncancer health risk, and DEQ uses this information to regulate TAC emissions from the facility. In some cases, the risk may be very low, and no further action may be required, or the risk may exceed health-based standards where DEQ can require risk reductions. In most cases, permit conditions will be developed and included in a facility's air quality permit to regulate TAC emissions based on the results of the risk assessment. 

Dec. 29, 2021: ORRCO submits Level 1 Risk Assessment (in DEQ review)

• Risk Assessment
• Appendix A
• Appendix B​